The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

"
Homeodomain-like
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 466: Transcription factor TFIIIB subunit

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 4 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
RNA polymerase III general transcription initiation factor activity GO:0000995
An activity that contributes to transcription start site selection and transcription initiation of genes transcribed by RNA polymerase III. Factors required for RNA polymerase III transcription initiation include TFIIIA, TFIIIB and TFIIIC.
7 O94481 (/IC) P46678 (/IC) P46678 (/IC) P46678 (/IC) P46678 (/IC) P46678 (/IC) P46678 (/IC)
TFIIIC-class transcription factor complex binding GO:0001156
Interacting selectively and non-covalently with a general RNA polymerase III transcription factor belonging to the TFIIC complex, one of the factors involved in formation of the preinitiation complex (PIC) by RNA polymerase III.
6 P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA)
TFIIIC-class transcription factor complex binding GO:0001156
Interacting selectively and non-covalently with a general RNA polymerase III transcription factor belonging to the TFIIC complex, one of the factors involved in formation of the preinitiation complex (PIC) by RNA polymerase III.
6 P46678 (/IPI) P46678 (/IPI) P46678 (/IPI) P46678 (/IPI) P46678 (/IPI) P46678 (/IPI)
DNA binding GO:0003677
Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
1 O94481 (/ISM)

There are 6 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
DNA-templated transcriptional open complex formation GO:0001112
Any process involved in the melting of the DNA hybrid of the core promoter region within the transcriptional closed complex of an RNA polymerase preinitiation complex (PIC) to produce an open complex where the DNA duplex around the transcription initiation site is unwound to form the transcription bubble.
6 P46678 (/IMP) P46678 (/IMP) P46678 (/IMP) P46678 (/IMP) P46678 (/IMP) P46678 (/IMP)
Regulation of transcription, DNA-templated GO:0006355
Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
6 P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA)
Positive regulation of transposon integration GO:0070896
Any process that activates or increases the frequency, rate or extent of transposon integration, a process in which a transposable element is incorporated into another DNA molecule.
6 P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA)
RNA polymerase III preinitiation complex assembly GO:0070898
The aggregation, arrangement and bonding together of proteins on promoter DNA to form the transcriptional preinitiation complex (PIC), the formation of which is a prerequisite for transcription from an RNA polymerase III promoter.
6 P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA)
RNA polymerase III preinitiation complex assembly GO:0070898
The aggregation, arrangement and bonding together of proteins on promoter DNA to form the transcriptional preinitiation complex (PIC), the formation of which is a prerequisite for transcription from an RNA polymerase III promoter.
6 P46678 (/IMP) P46678 (/IMP) P46678 (/IMP) P46678 (/IMP) P46678 (/IMP) P46678 (/IMP)
Transcription by RNA polymerase III GO:0006383
The synthesis of RNA from a DNA template by RNA polymerase III, originating at an RNAP III promoter.
1 O94481 (/ISS)

There are 4 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Transcription factor TFIIIB complex GO:0000126
A transcription factor complex that is involved in regulating transcription from RNA polymerase III (Pol III) promoters. TFIIIB contains the TATA-binding protein (TBP) and two Pol III-specific proteins, B'' and BRF.
6 P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA) P46678 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
6 P46678 (/TAS) P46678 (/TAS) P46678 (/TAS) P46678 (/TAS) P46678 (/TAS) P46678 (/TAS)
Transcription factor TFIIIB complex GO:0000126
A transcription factor complex that is involved in regulating transcription from RNA polymerase III (Pol III) promoters. TFIIIB contains the TATA-binding protein (TBP) and two Pol III-specific proteins, B'' and BRF.
1 O94481 (/ISS)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 O94481 (/HDA)
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